What Are Prebiotics? A Comprehensive Guide

Prebiotics are a type of dietary fiber that our bodies cannot digest; instead, they serve as nourishment for beneficial gut bacteria. By fermenting these fibers, gut microbes produce short-chain fatty acids (SCFAs) like butyrate, which strengthen the intestinal lining, reduce inflammation, and support overall gut health. A healthy gut-brain axis, facilitated by prebiotics, can enhance cognitive functions such as memory and focus, and may improve mood. Consuming prebiotic-rich foods like leeks, asparagus, chicory, green bananas, garlic, onions, wheat, oats, and beans can support this process.